Love this "handy guide" that helps distinguish Designers from Developers:

We Practice Transparency We are a team of equal contributors who speak openly and honestly with clients, and who take the practice of transparency so seriously that we work in an office with glass walls. We share successes as a team, and we test until work is perfect. We can show where our time goes, and more importantly, what our time creates. As Creators Good work is worth sharing, especially if it means you don't have to do the same things over and over again. As designers and developers we're completely transparent through the whole creative process. As Consultants Not all surprises are good surprises. We communicate often with clients and bill for exact consulting hours, making us surprisingly awesome to work with.